type 'a t = 'a Lazy.t
val force : ('a Lazy.t Lazy.t -> 'a) lazy_t
val force_val : ('a Lazy.t Lazy.t -> 'a) lazy_t
val lazy_from_fun : ((unit -> 'a) Lazy.t -> 'a Lazy.t) lazy_t
val lazy_from_val : ('a Lazy.t -> 'a Lazy.t) lazy_t
val lazy_is_val : ('a Lazy.t Lazy.t -> bool) lazy_t
